package com.waa.gulimall.order.config;

import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

@Configuration
public class ChangFeignConfig {
    @Bean("requestInterceptor")
    public RequestInterceptor requestInterceptor() {
        return new RequestInterceptor() {
            @Override
            public void apply(RequestTemplate requestTemplate) {
                //1.RequestContextHolder拿到刚进来的请求
                final ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
                final HttpServletRequest request = requestAttributes.getRequest();//获取当前的请求对象-->老请求
                System.out.println("fegin远程之前先进行requestInterceptor.apply");
                final String cookie = request.getHeader("Cookie");
                //给新请求同步了老请求的Cookie
                requestTemplate.header("Cookie", cookie);
            }
        };
    }
}
